Delta variant on track to become dominant cause of covid-19 globally
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Delta variant on track to become dominant cause of covid-19 globally

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By Adam Vaughan

A man crosses the tracks at a tram station in the empty central business district in Sydney

A man at a tram station in the empty central business district in Sydney on June 27, 2021, on the first full day of a two-week covid-19 lockdown

STEVEN SAPHORE/AFP via Getty Images)

The more transmissible delta variant is on track to become the dominant form of the virus globally, experts tell New Scientist. Now detected in at least 85 countries, its spread has triggered new lockdowns and other restrictions across the world.

“I know that globally there is currently a lot of concern about the delta variant, and the World Health Organization is concerned …

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